Typhoon DDS dataset for changing climate

CReSS02 and CReSS04 data are high-resolution datasets focusing on typhoons that can affect Japan. The dynamical downscaling (DDS) experiments were performed by the Earth Simulator using a high-resolution non-hydrostatic regional model (Cloud Resolving Storm Simulator, CReSS; Tsuboki and Sakakibara 2002) developed at Nagoya University, with horizontal resolutions of approximately 4 km (CReSS04) and 2 km (CReSS02). (a) CReSS02 The initial and boundary conditions were provided from the output calculated by the Meteorological Research Institute using an atmospheric general circulation model with a horizontal resolution of 20km (MRI-AGCM3.2S, Mizuta et al., 2012). The results of climate runs for the present-day climate (1979-2003), the near-future climate (2015-2039), and the future climate (2075-2099) were used. The targets of the DDS experiment were those in which the minimum central pressure not greater than 970 hPa, which was located in the region between 120°E–150°E 15°N–45°N. The CReSS02 uses latitude and longitude coordinates, with 2403 grids in the longitude direction and 2051 in the latitude direction. The horizontal resolution is 0.0186 and 0.0181 degrees in the longitude and latitude directions, respectively. (b) CReSS04 Dynamical downscaling experiments of TCs traveling over the sea east of Japan were performed by using the Policy Decision-Making for Future Climate Change (d4PDF) database (Mizuta et al. 2017, Sasaki et al. 2011). All TCs that made landfall in eastern Hokkaido in northern Japan from the western North Pacific Ocean with no previous landfalls were selected from the 3,000 years of current-climate (1950-2011, 50 members) and 5,400 years of 4-K warming-climate (2051-2111, 90 members) runs, respectively (MRI-AGCM3.2H). The DDS experiments for all targeted storms were conducted with CReSS with a horizontal resolution of 0.04° (approximately 4 km). The computational domain of CReSS04 spans 128°E–152°E and 24°N–48°N. The CReSS04 uses latitude and longitude coordinates, with 603 grids in the longitude direction and 603 in the latitude direction.